Wireless measuring module

Description

This module is used to measure your overall electricity consumption, solar production and energy consumption of appliances like heat pumps, heat pump boilers, air conditioning and EV chargers.
It communicates wirelessly with your Niko Home Control installation. All values measured can be consulted via the Niko Home app, allowing you to gain insight into your electricity (self-)consumption and production and detect deviations.
You can also configure smart energy alerts that notify you when abnormal energy consumption is detected.
Moreover, if you activate Niko Home control energy-saving routines such as solar mode, peak mode and EV smart charging, you can increase your self-consumption when excessive solar energy is available, avoid exceeding your peak power limit and reduce your energy costs.

Overview

Operation

The measuring module wirelessly measures the electrical current in one or several conductors via the current clamps supplied. The module detects the voltage of the phase to be measured via the connection terminals. By measuring both electrical current and voltage, the installation can accurately assess how much electricity is consumed or produced in the home. All values measured are sent to your Niko Home Control installation and saved on your connected controller, providing you with insight into your total electricity consumption and production. A detailed overview of these data can be requested via your smartphone.

• The measuring module should not be used for billing purposes and is intended for information purposes only. Only the data recorded by the meter of the energy supplier are valid for billing purposes
• Do not use the measuring module to measure direct current components

Installation

Niko Home Control wireless network

Follow the network set-up advice to guarantee the meshing of the devices before installing the measuring module.
Also, respect a minimum distance of 2 m between a Niko Home Control RF device (including the smart hub) and other RF transmitters (for example a Wi-Fi device) or devices such as motors, pumps and electronic LED transformers.

Wiring diagrams

This product must be secured with a miniature circuit breaker (MCB) of max. 16 A in the electrical cabinet. The MCB rating is limited by national installation rules.

Purpose*	Wiring diagram
Measuring three individual circuits on a single-phase supply network		Connect the blue wire to the neutral wire Connect the red wire to the phase wire monitored by clamp L1/A If the L2 and L3 clamps are used: Connect the grey wire to the phase wire monitored by clamp L2/B Connect the brown wire to the phase wire monitored by clamp L3/C
Measuring three individual circuits on a three-phase supply network		Connect the blue wire to the neutral wire Connect the red wire to the phase wire monitored by clamp L1/A If the L2 and L3 clamps are used: Connect the grey wire to the phase wire monitored by clamp L2/B Connect the brown wire to the phase wire monitored by clamp L3/C
Measuring the total consumption on a connection of 3P + N (400 Vac) on a three-phase supply network		Connect the blue wire to the neutral wire Connect the red wire to the phase wire monitored by clamp L1/A Connect the grey wire to the phase wire monitored by clamp L2/B Connect the brown wire to the phase wire monitored by clamp L3/C
Measuring the total consumption on a connection of 3P (3 x 230 Vac) on a three-phase supply network		Do not connect clamp L1/A Connect clamp L2/B to the second phase wire Connect clamp L3/C to the third phase wire Connect the blue wire to the phase wire which is not monitored by any current clamp (first phase wire) Connect the brown wire to the phase wire monitored by L2/B Connect the grey and red wire to the phase wire monitored by L3/C

*Measuring data for information purposes only, not valid for invoicing.

Installing the wireless measuring module

Follow the below steps to install the wireless measuring module:

• Ensure that the installation is disconnected from the mains
• Always measure voltage and current on the same phase
• The cable of the current clamp supplied with the module is calibrated. Do not shorten or extend this cable
• A maximum of five measuring modules can be added per installation

1. Fix the mounting bracket (supplied) to the wall with screws or click it to the DIN rail. Click the measuring module onto the mounting bracket.
2. Clip the current clamp around the conductor(s) of the switching circuit(s) of which the electricity consumption or production is to be measured

• The arrow located on the current clamp must point away from the main meter. However, if you want to measure the amount of solar energy delivered by your solar panels, battery or hybrid inverter, the arrow must point away from the inverter.
• Several switching circuits on the same phase can be measured by a single current clamp. One current clamp can be fitted around several different conductors

3. Connect the clamps to the measuring module
4. Connect the electrical wiring of the measuring module to the electrical circuits, as shown in the wiring diagrams above

• Make sure to always connect the blue and red wire to the same earth-leakage circuit breaker because the measuring module is powered by these wires.
• All cable inserts in the electrical cabinet need to be sealed off. The method to close off the cable entries is defined by national installation rules
• Fix the cables inside the cabinet to avoid accidental unplugging of the wireless measuring module from the electrical circuits 

Provided that everything is installed and configured correctly, the electrical power will be displayed as follows:

• Main/global home metering
  • Positive value upon consumption from the grid
  • Negative value upon injection in the grid
• Circuit/appliance metering
  • Positive value upon consumption
• Solar panels and/or battery
  • Positive value upon PV energy production or battery discharging
  • Negative value upon battery charging and/or PV inverter consumption

In case of installation issues, please proceed as follows:
The clamps have been installed in the wrong direction
Verify whether the clamps have been installed correctly via the diagnostics page of the Niko Home Control programming software.
You can invert the direction of the clamp by modifying its parameters via the Niko Home Control programming software.

The clamps have been connected to the wrong phase wires
Verify whether the clamps have been installed correctly via the diagnostics page of the Niko Home Control programming software. 
Always check the wiring and clamp connections to ensure that the correct phase wire/clamp combination is installed.

Onboarding

The wireless measuring module is onboarded and configured via the Niko Home Control programming software.

Only one wireless measuring module can be onboarded at a time. If the module is ready to be onboarded, its LED will flash red. All other wireless measuring modules should already be connected or powered off.

The following settings can be selected per channel:

• channel name
• single-phase or three-phase use
• channel type: global (meter from the energy supplier), sub-measurement consumption or sub-measurement yield (PV, battery, PV + battery), inverter (production, battery)
  
  

• If the voltage of the power supply of the Niko Home Control installation is disrupted, no data will be logged, even if electricity is still being consumed or produced by the switching circuits measured
• You will lose all channel data if you use the programming software to:

• remove the channel
• change the energy type
• change the measurement type

LED behaviour

		Reason	Action
Green LED flashing three times	x 3	The wireless measuring module is reset to its default factory settings	The module is being reset. Wait until it starts flashing RED to onboard it via the programming software
Red LED flashing		The wireless measuring module is ready to be added to the Niko Home Control wireless network	The module is ready to onboard in Niko Home Control. You can do this via the Niko Home Control programming software
LED OFF		Normal operation	No action required
		Power off	Connect the phase wire to the electrical circuits (see Installation)
		No communication with the main controller or no energy or power data received	If the connection is not restored automatically, switch the power supply of the wireless smart hub/wireless bridge off and on and check if the measuring module is still within range. Reduce the range to the wireless smart hub/wireless bridge or add a repeater in between. If the problem persists, please contact Niko customer services

Reset

Step	Action	LED
1	Press 10 s	x 3	flashing
2			flashing

Maintenance & Troubleshooting

Replacing a faulty measuring module

1. Remove the faulty module and install a new one
2. Add the new module to the Niko Home Control installation via the 'Addressing' tab of the Niko Home Control programming software
   
   

• You don't need to remove the address of the defective measuring module in the 'Addressing' tab as it will automatically be overwritten when addressing the new module
• Only one wireless measuring module can be onboarded at a time. If the module is ready to be onboarded, its LED will flash red. All other wireless measuring modules should already be connected or powered off.

Upgrading the wireless measuring module

When an upgrade is available, you are notified about the newest version in the Niko Home Control programming software or Niko Home app. The module remains operational during the upgrade. If your installation contains multiple wireless measuring modules, they are automatically upgraded one by one. The wireless measuring module is upgraded within maximum six hours after the wireless smart hub has been upgraded.

What happens to the wireless measuring module when I need to replace or reset my wireless smart hub?

The address of the wireless measuring module(s) need to be re-assigned to the wireless smart hub in case of a reset or replacement.

Proceed as follows:

• Reset the wireless measuring module
• Re-address the wireless measuring module via the 'Addressing' tab in the Niko Home Control programming software

Repeat this procedure for all wireless measuring modules.

Troubleshooting

Technical data

• Measurement range with the current clamps supplied: 0 W  – 14490 W / 0.44 A – 63 A 
• Circuit breaker: maximum MCB rating 16 A*
• Maximum measurement range for the total measuring module: 3 x 14490 W
• Wireless communication: 2.4 GHz IEEE 802.15.4 compatible with the mesh network of the wireless hub (552-00001) and wireless bridge (550-00640)
• Maximum RF range: 10 m (mesh networking support for longer range)
• Input voltage: 230 Vac
• Radio frequency power: 19.5 dBM
• Number of current clamps: 3 (included)
• Maximum cable size in clamp: 10 mm²
• Accuracy: 100 W: IEC 62053-21 class 2 (R), class 2 (L), 10 W < ... < 100 W: 5 %
• Connection: three-phase: 3P+N (400 Vac), 50 Hz
  three-phase: 3P (3 x 230 Vac), 50 Hz
  single-phase: three circuits of 230 Vac, 50 Hz
• Length of the connector cable at each current clamp: 90 cm
• Dimensions (LxWxH): 86 x 86 x 37 mm
• Ambient temperature: 0 – 40°C

* The MCB rating is limited by national installation rules